Attention:

This Product is exclusively for individual, please be careful to keep it clean before and after use; when washing it, keep circuit part away from water, avoid to cause electrical fault; keep silicone cover away from dirty matter like ink; before storage, remove battery and reposition back to its normal site respectively in packing box for future use.

If you need any help, please feel free to let us know ,We will provide you our best support and service.